Definition A: When media organizations, prominent people (or both) claim there is no evidence for something despite the opposite being true.
Definition B: When media organizations, prominent people (or both) claim that something true is actually false or misleading in order to perpetuate a preferred narrative.
Media Organization: " The damaging video being shared online which shows the President in a bad light is fake"
Person: "It's literally the same unaltered video that your news organization shared LIVE two hours before you realized it was damaging to your Party's narrative. STOP LAPTOPPING US, you're insulting our intelligence and destroying YOUR credibility